Early Server Sockets
- Socket 8
- Introduced: 1995
- Supported CPUs: Pentium Pro
- Key Features: Designed for early high-performance servers.
- Slot 2
- Introduced: 1998
- Supported CPUs: Pentium II Xeon, Pentium III Xeon
- Key Features: Cartridge-based design for early Xeon processors.
NetBurst Era
- Socket 603
- Introduced: 2001
- Supported CPUs: Xeon (NetBurst architecture)
- Key Features: Early support for multiprocessor systems.
- Socket 604
- Introduced: 2002
- Supported CPUs: Xeon (NetBurst architecture)
- Key Features: Enhanced version of Socket 603 with better thermal and electrical properties.
Core Architecture Era
- LGA 771 (Socket J)
- Introduced: 2006
- Supported CPUs: Xeon 5000 series, Xeon 7000 series
- Key Features: Supported dual-socket configurations and DDR2/DDR3 memory.
- LGA 1366 (Socket B)
- Introduced: 2008
- Supported CPUs: Xeon 5500 series, Xeon 5600 series
- Key Features: Introduced support for triple-channel DDR3 memory.
Sandy Bridge and Ivy Bridge Era
- LGA 1356 (Socket B2)
- Introduced: 2012
- Supported CPUs: Xeon E5-2400 series
- Key Features: Designed for mid-range server applications.
- LGA 2011 (Socket R)
- Introduced: 2011
- Supported CPUs: Xeon E5-2600 series, Xeon E5-4600 series
- Key Features: Quad-channel memory support, integrated PCIe 3.0 lanes.
Haswell, Broadwell, and Skylake Era
- LGA 2011-3 (Socket R3)
- Introduced: 2014
- Supported CPUs: Xeon E5-1600/2600 v3 and v4 series
- Key Features: Improved power delivery and DDR4 memory support.
- LGA 3647 (Socket P)
- Introduced: 2017
- Supported CPUs: Xeon Scalable Processors (Skylake-SP, Cascade Lake-SP)
- Key Features: Supports up to 6-channel DDR4 memory, large socket for high-core-count CPUs.
Modern Server Sockets
- LGA 4189 (Socket P4)
- Introduced: 2020
- Supported CPUs: Xeon Scalable (Ice Lake-SP, Sapphire Rapids-SP)
- Key Features: PCIe 4.0/5.0 support, 8-channel DDR4/DDR5 memory.
- LGA 4677 (Socket E1)
- Introduced: 2023
- Supported CPUs: Xeon Max
- Series, Xeon Scalable 4th Gen (Emerald Rapids-SP)
- Key Features: DDR5 support, PCIe 5.0, Compute Express Link (CXL) capabilities.
Summary of Intel Server Sockets by Era
| Era | Sockets | Key Features |
|---|---|---|
| Early (1995-2002) | Socket 8, Slot 2 | First server-grade platforms, basic multiprocessing. |
| NetBurst (2001-2006) | Socket 603, Socket 604 | Multiprocessor and high-performance designs. |
| Core (2006-2011) | LGA 771, LGA 1366 | Quad-channel memory, DDR3 support. |
| Sandy/Ivy Bridge (2011-2014) | LGA 1356, LGA 2011 | Integrated PCIe 3.0, multi-channel memory. |
| Haswell-Skylake (2014-2018) | LGA 2011-3, LGA 3647 | DDR4 memory, scalable sockets for enterprise. |
| Modern (2020+) | LGA 4189, LGA 4677 | PCIe 5.0, DDR5, high core-count CPUs for HPC. |